42864886 has 4 divisors (see below), whose sum is σ = 64297332. Its totient is φ = 21432442.

The previous prime is 42864869. The next prime is 42864911. The reversal of 42864886 is 68846824.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10716220 + ... + 10716223.

It is an arithmetic number, because the mean of its divisors is an integer number (16074333).

Almost surely, 2^42864886 is an apocalyptic number.

42864886 is a deficient number, since it is larger than the sum of its proper divisors (21432446).

42864886 is a wasteful number, since it uses less digits than its factorization.

42864886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21432445.

The product of its digits is 589824, while the sum is 46.

The square root of 42864886 is about 6547.1280726743. The cubic root of 42864886 is about 349.9724767473.

The spelling of 42864886 in words is "forty-two million, eight hundred sixty-four thousand, eight hundred eighty-six".